argentino - Resultados de la búsqueda - Depósito Digital de Documentos de la UAB

Buscar colecciones:

Ordenar por:	Mostrar resultados:	Formato de visualización:

Resultados globales: 3 registros encontrados en 0.02 segundos.
Artículos, Encontrados 2 registros Documentos gráficos y multimedia, Encontrados 1 registros

Artículos	Encontrados 2 registros

12 p, 897.7 KB

Tracking sea bed topography in the Jurassic. The Lotena Group in the Sierra de la Vaca Muerta (Neuquén Basin, Argentina) / Zavala, C. (Universidad Nacional del Sur. Departamento de Geología) ; Instituto Argentino de Oceanografía
The Lotena Group is a clastic to evaporitic unit up to 650 m thick that accumulated during the Middle to Late Jurassic in the Neuquén Basin, western Argentina. Extensive field work carried out in the Sierra de la Vaca Muerta and Arroyo Covunco areas, including the measurement of seven detailed stratigraphic sections and geological mapping allow the discrimination of six unconformity-bounded units or sequences. [...]
2005 - DOI (Digital Object Identifier)

10.1344/105.000001400
Geologica acta, Vol. 3, Núm. 2 (2005) , p. 107-118

Registro completo -

15 p, 2.3 MB

Trilobite-based biostratigraphic model (biofacies and biozonation) for the Middle Cambrian carbonate platform of the Argentine Precordillera / Bordonaro, Osvaldo Luís (Universidad Nacional de San Juan) ; Banchig, Aldo Luis (Universidad Nacional de San Juan) ; Pratt, Brian (University of Saskatchewan. Department of Geological Sciences) ; Raviolo, Mariana M. (Universidad Nacional de San Juan) ; Consejo Nacional de Investigaciones Científicas y Técnicas (Argentina). Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales
A preliminary biostratigraphic model that combines trilobite biofacies and biozonation is proposed for the early Marjumian (Middle Cambrian) of the Precordillera of western Argentina. This interval involves a variety of paleogeographic-paleoenvironmental settings across the carbonate platform, ranging from its interior to exterior areas beyond the platform margin and including both open-marine and near-shore environments. [...]
Three biofacies were recognized on the basis of trilobite associations that show a marked environmental distribution: 1) The Ptychagnostidae Biofacies is represented by an assemblage exclusively dominated by agnostoids, most of them belonging to Ptychagnostus; this assemblage occurs in mudstones and calcareous shales deposited below storm wave-base seaward of the platform margin; 2) the Peronopsidae Biofacies also developed in the external areas but it occurs in limestones deposited between fair-weather and storm wave-base; this assemblage is likewise dominated by agnostoids, but instead belonging to Peronopsis, with the rest of the fauna comprising polymeroids (Dolichometopidae, Oryctocephalidae, Zacanthoididae and Alokistocaridae); 3) the Alokistocaridae Biofacies occurs in grainstones, mudstones and calcareous shales deposited between fair-weather and storm wave-base under changeable conditions located near the platform margin and in the interior. [...]
2008 - DOI (Digital Object Identifier)

10.1344/105.000000246
Geologica acta, Vol. 6, Núm. 2 (Juny 2008) , p. 115-129

Registro completo -

Documentos gráficos y multimedia	Encontrados 1 registros

¿Le interesa recibir alertas sobre nuevos resultados de esta búsqueda?
Defina una alerta personal vía correo electrónico o subscríbase al canal RSS.